BH1710FVC PDF даташит
Спецификация BH1710FVC изготовлена «ROHM Semiconductor» и имеет функцию, называемую «Digital 16bit Serial Output Type Ambient Light Sensor IC». |
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Детали детали
Номер произв | BH1710FVC |
Описание | Digital 16bit Serial Output Type Ambient Light Sensor IC |
Производители | ROHM Semiconductor |
логотип |
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Ambient Light Sensor ICs
Digital 16bit Serial Output Type
Ambient Light Sensor IC
BH1710FVC
No.10046EBT07
●Descriptions
BH1710FVC is an digital Ambient Light Sensor IC for I2C bus interface. This IC is the most suitable to obtain the ambient
light data for adjusting LCD and Keypad backlight power of Mobile phone. It is possible to detect wide range at High
resolution. (1 - 65535 lx).
●Features
1) I2C bus Interface (f / s Mode Support)
2) Spectral responsibility is approximately human eye response
3) Illuminance to Digital Converter
4) Wide range and High resolution. (1 – 65535 lx)
5) Low Current by power down function
6) 50Hz / 60Hz Light noise reject-function
7) 1.8V Logic input interface
8) No need any external parts
9) Light source dependency is little. (ex. Incandescent Lamp. Fluorescent Lamp. Halogen Lamp. White LED. Sun Light)
10) It is possible to select 2 type of I2C slave-address.
11) Adjustable measurement result for influence of optical window
(It is possible to detect min. 0.24 lx, max. 100000 lx by using this function.)
●Applications
Mobile phone, LCD TV, NOTE PC, Portable game machine, Digital camera, Digital video camera, Car navigation, PDA,
LCD display
●Absolute Maximum Ratings
Parameter
Symbol
Ratings
Units
Supply Voltage
Vmax
4.5 V
Operating Temperature
Topr
-30~85
℃
Storage Temperature
Tstg
-40~100
℃
SDA Sink Current
Imax
7 mA
Power Dissipation
Pd 260※
※ 70mm × 70mm × 1.6mm glass epoxy board. Derating in done at 3.47mW/℃ for operating above Ta=25℃.
mW
●Operating Conditions
Parameter
VCC Voltage
I2C Reference Voltage
Symbol
VCC
VDVI
Min.
Ratings
Typ.
Max.
Units
2.4 3.0 3.6 V
1.65
-
VCC
V
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© 2010 ROHM Co., Ltd. All rights reserved.
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BH1710FVC
●Electrical Characteristics(VCC = 3.0V, DVI = 3.0V, Ta = 25℃, unless otherwise noted)
Parameter
Symbol
Min.
Limits
Typ.
Max.
Supply Current
Icc1 -
120 190
Powerdown Current
Icc2 - 0.01 0.2
Peak Wave Length
λp - 560 -
Measurement Accuracy
S/A 0.75 1.2 1.65
Dark (0 lx) Sensor out
H-Resolution Mode Resolution
M-Resolution Mode Resolution
L-Resosution Mode Resolution
H-Resolution Mode Measurement Time
S0
rHR
rMR
rLR
tHR
0
-
-
-
-
02
1-
4-
32 -
120 180
Technical Note
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Units
µA
µA
nm
times
count
lx
lx
lx
ms
Conditions
Ev = 100 lx ※1
No input Light
Sensor out / Actual lx
EV = 1000 lx ※1, ※2
H-Resolution Mode ※3
M-Resolution Mode Measurement Time tMR
-
16
24 ms
L-Resolution Mode Measurementt time
tLR
-
2.9 4.5 ms
Incandescent
/ Fluorescent Sensor out ratio
rIF - 1 - times EV = 1000 lx
ADDR Input ‘H’ Voltage
ADDR Input ‘L’ Voltage
DVI Input ‘L’ Voltage
SCL, SDA Input ‘H’ Voltage 1
SCL, SDA Input ‘H’ Voltage 2
SCL, SDA Input ‘L’ Voltage 1
SCL, SDA Input ‘L’ Voltage 2
SCL, SDA, ADDR Input ‘H’ Current
SCL, SDA, ADDR Input ‘L’ Current
I2C SDA Output ‘L’ Voltage
I2C SCL Clock Frequency
I2C Hold Time (repeated)
START Condition
I2C ‘L’ Period of the SCL Clock
VAH 0.7×VCC
-
-V
VAL -
- 0.3×VCC V
VDVL
-
- 0.4 V
VIH1 0.7×DVI
-
-V
VIH2
1.26
-
-V
VIL1
-
- 0.3×DVI V
VIL2
IIH
IIL
VOL
fSCL
-
-
-
0
-
- DVI-1.26 V
- 10 µA
- 10 µA
- 0.4 V
- 400 kHz
tHDSTA 0.6
-
- µs
tLOW
1.3
-
- µs
I2C ‘H’ Period of the SCL Clock
I2C Set up time for a Repeated
START Condition
I2C Data Hold Time
tHIGH
0.6
-
- µs
tSUSTA
0.6
-
- µs
tHDDAT
0
- 0.9 µs
I2C Data Setup Time
tSUDAT 100
-
- ns
I2C Set up Time for STOP Condition
tSUSTO
0.6
-
- µs
I2C Bus Free Time between a
STOP and START Condition
tBUF
1.3
-
-
※1 White LED is used as optical source.
※2 Measurement Accuracy typical value is possible to change '1' by "Measurement result adjustment function".
※3 Use H-Resolution Mode if dark data (less than 10 lx) is need.
µs
DVI ≧1.8V
1.65V≦DVI<1.8V
DVI ≧1.8V
1.65V≦DVI<1.8V
IOL = 3 mA
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© 2010 ROHM Co., Ltd. All rights reserved.
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2010.06 - Rev.B
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BH1710FVC
●Reference Data
1.2
1
0.8
0.6
0.4
0.2
0
400 500 600 700 800 900 1000 1100
Wavelength [ nm ]
Fig.1 Spectral Response
1.2
1
1pin
0.8 受信指向- 角特性+
0.6
0.4
-+
0.2
0
-90 -60 -30
0
30 60 90
Angle [ deg ]
Fig.4 Directional Characteristics 1
1.2
1
0.8
0.6
0.4
0.2
0
-30
0 30 60
Ta [ ℃ ]
90
Fig.7 Measurement Result
Temperature Dependency
10
1
0.1
0.01
-20
0 20 40 60
Ta [ ℃ ]
Fig.10 VCC – ICC@0 Lx
( POWER DOWN )
80
64
56
48
40 H-Res.
32
L-Res.
24
16
8 M-Res.
0
0 8 16 24 32 40 48 56 64
Illuminance [ lx ]
Fig.2 Illuminance –
Measurement Result 1
1.2
1
0.8
0.6 -
1pin
0.4 -
0.2 +
+
0
-90 -60 -30 0 30 60
Angle [ deg ]
90
Fig.5 Directional Characteristics 2
Fluorescent
Light
Incandescent
Light
Halogen
Light
Kripton Light
Artifical Sun
Light
White LED
0 0.5 1 1.5 2
Ratio
Fig.8 Light Source Dependency
( Fluorescent Light is set to '1' )
1.2
1
DVI=1.8V
0.8
0.6
0.4
0.2
0
2 2.5 3 3.5 4
VCC [ V ]
Fig.11 Measurement Result
VCC Dependency
Technical Note
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100000
10000
1000
100
10
1
1 10 100 1000 10000 100000
Illuminance [ lx ]
Fig.3 Illuminance –
Measurement Result 2
10
8
6 蛍光灯白熱灯感度比
4
2
0
-30
H-Res.
0 30 60
Ta [ ℃ ]
Fig.6 Dark Response
90
200
150 VCC vs. ICC@測定
中
100
50
0
2 2.5 3 3.5 4
VCC [ V ]
Fig.9 VCC – ICC
( During measurement )
1.2
1
VCC=3V
0.8
0.6
0.4
0.2
0
1.5 2 2.5 3 3.5
DVI [ V ]
Fig.12 Measurement Result
DVI Dependency
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© 2010 ROHM Co., Ltd. All rights reserved.
3/16
2010.06 - Rev.B
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Номер в каталоге | Описание | Производители |
BH1710FVC | Digital 16bit Serial Output Type Ambient Light Sensor IC | ROHM Semiconductor |
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